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Subject: Re: Fritz: A bug?

Author: Paulo Soares

Date: 22:26:23 12/17/99

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On December 17, 1999 at 17:10:12, Albert Silver wrote:

>I seem to have run across a bizarre problem and wonder if this might not be a
>bug in Fritz (5 or 6) or one of the infamous null-move problems. I was analyzing
>the following position which was part of some analysis done on
>Yakovich-Stefanova, Sevilla op, 1999:
>
>r4rk1/p3bppp/nn6/1N6/Ppp1P3/1P2BP2/N3K1PP/R2R4 w - - 0 18
>
>In this position the indicated move is 18.Nxa7! Fritz never finds this (at least
>up to 14 plies) and I decided to check the lines which follow: 18...cxb3 and
>here again, Fritz sees nothing for White and the eval drops with each ply; yet
>as soon as I feed it the next move 19.Bxb6 its eval shoots up in White's favour.
>What gives?
>
>                                     Albert Silver

Eu acredito que não seja um bug, pois H7.32 e Rebel Century
também não jogam Nxa7 em tempo de torneio (PIII-450 HT=60)
Não analisei a posição muito tempo, mas tenho dúvidas se
Nxa7 é o melhor lance.
Paulo

I believe that is not a bug, because H7.32 and Rebel Century don't play
Nxa7 in tournament time (PIII-450 HT=60). I didn't analyze the position
much time, but I have doubts if Nxa7 are the best move.
Paulo Soares, from Brazil




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